WIXLIB

This is a preview of "ASME Y14.5-2018". Click here to purchase the full version from the ANSI store.ASME Y14.5-2018(Revision of ASME Y14.5-2009)Dimensioningand TolerancingEngineering Product Definition andRelated Documentation PracticesA N I N T E R N AT I O N A L STA N DA R D

This is a preview of "ASME Y14.5-2018". Click here to purchase the full version from the ANSI store.ASME Y14.5ADOPTION NOTICEASME Y14.5, Dimensioning and Tolerancing, was adopted on 9 February 2009 for use by theDepartment of Defense (DoD). Proposed changes by DoD activities must be submitted to the DoDAdopting Activity: Commander, U.S. Army Research, Development and Engineering Center(ARDEC), ATTN: AMSRD-AAR-QES-E, Picatinny Arsenal, NJ 07806-5000. Copies of thisdocument may be purchased from The American Society of Mechanical Engineers (ASME), 150Clove Road, 6th Floor, Little Falls, NJ 07424-2139; http://www.asme.org.Custodians:Army — ARNavy — SAAir Force — 16Adopting Activity:Army — AR(Project DRPR-2009-003)Review Activities:Army — CR, MI, PT, TMNavy — AS, CG, CH, EC, MC, NP, TDAir Force — 13, 99DLA — DHOSD — SENSA — NSOther — CM, MP, DC2NOTE: The activities listed above were interested in this document as of the date of this document.Since organizations and responsibilities can change, you should verify the currency of theinformation above using the ASSIST Online database at https://quicksearch.dla.mil.ASMC N\AAREA DRPRDISTRIBUTION STATEMENT A. Approved for public release, distribution is unlimited.

This is a preview of "ASME Y14.5-2018". Click here to purchase the full version from the ANSI store.ASME Y14.5-2018(Revision of ASME Y14.5-2009)Dimensioning andTolerancingEngineering Product Definition andRelated Documentation PracticesAN INTERNATIONAL STANDARDx

This is a preview of "ASME Y14.5-2018". Click here to purchase the full version from the ANSI store.Date of Issuance: February 11, 2019This Standard will be revised when the Society approves the issuance of a new edition.Periodically certain actions of the ASME Y14 Committee may be published as Cases. Cases are published on the ASME websiteunder the Y14 Committee Page at http://go.asme.org/Y14committee as they are issued.Errata to codes and standards may be posted on the ASME website under the Committee Pages to provide corrections toincorrectly published items, or to correct typographical or grammatical errors in codes and standards. Such errata shall be usedon the date posted.The Y14 Committee Page can be found at http://go.asme.org/Y14committee. There is an option available to automaticallyreceive an e-mail notification when errata are posted to a particular code or standard. This option can be found on theappropriate Committee Page after selecting “Errata” in the “Publication Information” section.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The StandardsCommittee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had anopportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunityfor additional public input from industry, academia, regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in thisdocument, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, norassume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and therisk of infringement of such rights, is entirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industryendorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME proceduresand policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990Copyright 2019 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.

This is a preview of "ASME Y14.5-2018". Click here to purchase the full version from the ANSI store.CONTENTSForeword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xivCommittee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvCorrespondence With the Y14 Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xviSection 11.11.21.31.4Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Reference to This Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ASME Y14 Series Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111111.51.61.7Section 22.1Drawings Without Reference to a Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Reference to Gaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223442.22.3Section 3Section 44.1Cited Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Additional Sources (Not Cited) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fundamental Rules, Tolerancing Defaults, and Dimensioning Practices . . . . . . . . . .Fundamental Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44512124.24.34.44.54.6Section 55.15.25.35.4Units of Measure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Types of Dimensioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Application of Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dimensioning Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Location of Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tolerancing, Interpretation of Limits, Limits of Size, and Material Condition ModifiersGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Direct Tolerancing Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tolerance Expression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Interpretation of Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131314151833333334345.55.65.75.85.9Single Limit Toleranced Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tolerance Accumulation Between Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dimensions Related to an Origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Limits of Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Applicability of Modifiers on Geometric Tolerance Values and Datum Feature References.35353535365.105.115.125.135.14Screw Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Gears and Splines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Boundary Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Angular Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Conical Tapers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3838383838iii.